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Massive genetic study aims to unlock Autism's secrets

NCT ID NCT04727489

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is looking at the DNA of 3,800 people with autism to find genetic changes that might be linked to the condition. Researchers hope to better understand which genes are involved and how they affect brain function. The goal is to lay the groundwork for future treatments, not to test a new drug or therapy right now.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this research could identify key genetic targets for developing new therapies for autism spectrum disorder.
What could go wrong
This is an observational genetic study, not a treatment trial. It may not directly lead to new therapies, and findings may take years to translate into clinical practice.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 3,800 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2021

Expected to finish

Mar 2036

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

For all patients included in the study

Ages

24 months to 70 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria--------------------------------------------------------------------------------------------------- Probands with Autism Spectrum Disorder * Meet the diagnostic criteria for ASD of the DSM-5 \[American Psychiatric Association, 2013\] based on a consensus between the clinical expertise of expert clinicians, the scores of the Autism Diagnostic Interview-Revised (ADI-R) (Rutter et al, 2003) and those of the Autism Diagnosis Observation Schedule (ADOS-2) (Lord et al, 2012) * Be at least 24 months (no upper age limit) * Somatic and Intellectual state compatible with a blood test * Affiliation to the social insurance * Signature of informed consent by the applicant or by holders of parental authority if the subject is a minor or by the guardian if the subject is under guardianship Controls without ASD * At least 24 months old * Somatic and Intellectual state compatible with a blood test * Affiliation to the social insurance * Signature of informed consent by the subject or by holders of parental authority if the subject is a minor or by the guardian if the subject is under guardianship Relatives of the probands with ASD or of controls without ASD * At least 24 months old * Somatic and Intellectual state compatible with a blood test * Affiliation to the social insurance * Signature of informed consent by the subject or by holders of parental authority if the subject is a minor or by the guardian if the subject is under guardianship Exclusion Criteria -------------------------------------------------------------------------------------------------- Probands with Autism Spectrum Disorder * Severe Intelectual Deficiency (IQ,35 or developmental age \<18 months) ●. Personal psychiatric history (schizophrenia, bipolar disorder, substance use disorder (except tobacco), recurrent depression disorder, severe instable anxiety disorder) * Personal neurologic history (epilepsy, or severe neurological disease) Relatives of the probands with ASD, of the controls or the controls: ● Medical condition (psychiatric or somatic) not compatible with the inclusion

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    6 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Albert Chenevier Hospital

    NOT_YET_RECRUITING

    Créteil, Île-de-France Region, 94000, France

  • CIC, CHU Bordeaux

    RECRUITING

    Bordeaux, France

  • CIC, H. Mondor, Creteil

    NOT_YET_RECRUITING

    Créteil, France

  • CRA, Hopital Charles Perrens, Bordeaux

    RECRUITING

    Bordeaux, France

  • Centre de rehabilitation psychosociale, Hopital Saint Egreve

    NOT_YET_RECRUITING

    Grenoble, Grenoble, France

  • Robert Debré Hospital

    NOT_YET_RECRUITING

    Paris, Île-de-France Region, 75019, France

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